WBGT WBGT alarm setting Adjustable alarm setting, if the WBGT valueover the alarm threshold, the buzzer will sound along with the flashing Display.Datalogger Sampling Time Setting range Auto 1 second to 3600 seconds @ Sampling time can set to 1 second, but may the data memory loss.Manual Push the data logger button once will save data one time. @ Set the sampling time to 0 second. @ Manual mode, can also select the 1 to 99 position (Location) no.